4. A 0.584gram sample of a fertilizer was analyzed for its N content by the kjeldahl method, the liberated NH3 being collected in 50mL of 0.1062M HCl. The excess acid required 11.89mL back-titration with 0.093M NaOH. Express the result of this analysis in terms of % b. Urea, H₂NCONH₂ a. N

4. A 0.584gram sample of a fertilizer was analyzed for its N content by the kjeldahl method, the liberated NH3 being collected in 50mL of 0.1062M HCl. The excess acid required 11.89mL back-titration with 0.093M NaOH. Express the result of this analysis in terms of % b. Urea, H₂NCONH₂ a. N

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.21QAP

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

4. A 0.584gram sample of a fertilizer was analyzed for its N content by the kjeldahl method, the liberated
NH3 being collected in 50mL of 0.1062M HCl. The excess acid required 11.89mL back-titration with
0.093M NaOH. Express the result of this analysis in terms of %
b. Urea, H₂NCONH₂
a. N

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